Restart your device or perform a respring via Cydia. Launch the YouTube app. The application will now read the updated string, bypass the upgrade prompt, and populate your subscription and home feeds normally. Alternative Solutions for iOS 9.3.5
Sideloadly will ask for your Apple ID password to sign the app. It sends this directly to Apple servers to generate a free developer certificate.
Launch Sideloadly and connect your iOS 9.3.5 device to the computer via USB. Ensure your computer recognizes the device. youtube ipa file for ios 9.3.5
Disclaimer: This article is for educational purposes. Downloading and sideloading modified IPA files violates Google’s Terms of Service and Apple’s end-user license agreement. Proceed at your own risk.
Elias wasn’t trying to reinvent the wheel. He just wanted to watch a woodworking tutorial in his garage without having to prop up his iPhone. But when he tapped the YouTube icon, the app gasped, flashed a "Connect to iTunes" prompt, and died. Google had killed the legacy API months ago. The App Store, usually a vibrant marketplace, looked like a ghost town for this device; every "Update" button was greyed out, demanding an iOS version the old chip couldn't handle. Restart your device or perform a respring via Cydia
Sideloadly or AltStore (Sideloadly is highly recommended for iOS 9).
Method 1: The App Store "Last Compatible Version" Trick (No Jailbreak) Alternative Solutions for iOS 9
iOS apps require digital signatures. Older .ipa files often have expired certificates and will fail to install.